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Melt containment member

United States Patent

September 9, 2014
View the Complete Patent at the US Patent & Trademark Office
A tubular melt containment member for transient containment of molten metals and alloys, especially reactive metals and alloys, includes a melt-contacting layer or region that comprises an oxygen-deficient rare earth oxide material that is less reactive as compared to the counterpart stoichiometric rare earth oxide. The oxygen-deficient (sub-stoichiometric) rare earth oxide can comprise oxygen-deficient yttria represented by Y.sub.2O.sub.3-x wherein x is from 0.01 to 0.1. Use of the oxygen-deficient rare earth oxide as the melt-contacting layer or region material reduces reaction with the melt for a given melt temperature and melt contact time.
Rieken; Joel R. (Nevada, IA), Heidloff; Andrew J. (West Des Moines, IA)
Iowa State University Research Foundation, Inc. (Ames, IA)
13/ 573,211
August 30, 2012
CONTRACTUAL ORIGIN OF THE INVENTION This invention was made with government support under Grant No. DE-AC02-07CH11358 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.